Crank-case-oil-level governor



C. S. BURTON.

CRANK CASE OIL LEVEL GOVERNOR.

APPLICATION FILED JAN. II, 1919.

1 ,330,236. Patented Feb. 10, 1920.

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The purpose of this invention is to provide an improved device for regulating the level of the liquid in the chamber which is supplied from an exterior source, such, for example, as the crank case of an automobile engine where the liquid whose level is to be governed is the lubricating oil su plied by gravity from an elevated source. 1: consists inthe elements and features of construction shown and described, as indicated in the claims.

In the drawings:

Figure 1 is a vertical axial section of a device embodying this invention, -'being shown conventionally or diagrammatically in connection with the chamber whose liquid level is to be governed, and the source of liquid.

.Fig. 2 is a bottom plan view of the governing device. 7

In the drawings 1 represents any source of the liquid which is to be supplied to a I chamber 2, which may be understood to be the crank case of an automobile engine.

3 is a receptacle havingv an inlet fitting, 4,at

itsupper end and a discharge fitting, 5, at its lower end, the former being connected with the liquid source, 1, andthe latter with the'chamber, 2. The fitting, 5, may be in the form of a drain cock having its connection with the chamber, 2, leading off laterally, as shown at 7, above the drain-cock valve. The receptacle, 3, is preferably made witha glass body, 3 and top cap, 3", and

bottomplate, 3, said cap and plate being tied together by exterior tie rods, 3 of which three are shown (see Fig. 2). Suitable packing rings, 9, are interposed between the ends of the glass body and the cap and bottom plate, for making the receptacle liquid-tight at these junctions. The cap plate, 3, has an atmosphere inlet or vent aperture, 3". The inlet fitting, 4, has the inlet port, 4;, conically counter-bored at the lower end, as seen at 4:", afi'ording a valve seatand guide-and approach thereto. This fitting is constructed with j the jenlargem'ent seen at the lowerjenjd to form an upwardly'-' facing-shoulder atA and'is designed to be inserted through the c'ap plate from'the lower side and secured by the nut, 10, above the cap plate.

The valve for controlling the inlet is a ball 11, of suitable diameter to seat at the upper end of the conical counterbore of the inlet port, the angle of convergence of the sides of said counterbore being such with respect to the diameter of the ball valve that the ball shall seat just a littleback from the angle formed between the conical counterbore and the cylindrical bore, that is, so that the ball shall not seat directly on the angle which would tend to produce liability to sticking. And the entire axial depth of the conical counterbore is enough less than the diameter of the ball valve so that the latter protrudes a very considerable segment of its volume below the horizontal plane of the lower end of the inner fitting when the valve is seated. In the receptacle there is located a float, or buoy, 12, which is preferably spherical and which is of such diameter with respect to the dimensions of the receptacle, that when resting upon the bottom of the receptacle and against one side thereof, it blockades the escape of the ball valve from the conical counterbore which constitutes a guide-way or approach to the guide seat.

I claim:

1. A device for governing level of liquid in a chamber to which it is supplied by a flow from exterior source, comprising a receptacle having at the upper part an inlet fitting and at the lower part a discharge fitting, the inlet fitting having a valve seat at the lower end of its port; a free valve adapted for seating in said seat; means constituting a valve guide and approach to the seat ofgreater diameter than the valve; 21 buoy in the chamber aflording lodgment on its upper surface for the valve, the relative dimension of the chamber and buoy being adapted for keeping the buoy in position blockading the escape of the valve from the guide. V V

2. A device for governing the level of liquid ina chamber to which it is supplied by a How from an exterior source, comprising a receptacle having at the upper part an 110 inlet fitting and at the lower part a discharge fitting; the inlet fitting having a valve seat at the lower end of its ort; a ball valve adapted for seating in said seat; means constituting a valve guide and approach to the seat; a buoy in the chamber having a spheroidal surface for operating the ball valve therein, and means by which said buoy is kept in position blockading the escape of the valve from the guide.

3. A device for governing the level of liquid in a chamber to which it is supplied by a flow from an exterior source, compris ing a receptacle having at the upper part an inletfitting and at the lower part a disposition blocka ing the escape of the valve from the guide.

In testimony whereof I have hereunto set my hand at Chicago, Illinois, this 8th day of January, 1919.

CHARLES S. BURTON. 

